Re: bash_history

[tmpgl () ispgaya pt]

And if you execute the bash with -noprofile?
like:
/bin/bash -noprofile -norc
then you can unset HISTFILE..

Quoting l0rd4gu1 <l0rd4gu1 () icontrol com mx>:

> Hi Alex
>
> Use readonly to define the variable & use chattr for files
>
> /etc/profile:
> .
> .
> readonly HISTFILE=......
> .
> .
>
> Raul
> --
> Victorious warriors win first and then go to war, while defeated
> warriors go to war first and then seek to win. -- Sun-Tzu
>
> Alejandro Flores(alejandro.flores () triforsec com br)@2005.04.08
> 18:50:51 +0000:
> > Hey there,
> >
> > I was googling about a way to protect the bash_history file from user
> > removal or UNSET the HISTFILE variable and all I found was papers about
> > disabling this file for security reasons. Weird! Why it's recommended to
> > disable this file, when it contains the history of typed commands from
> > all users? Ok, ok, you can tell me that users may have typed passwords
> > in a bash session to gain access to a mysql database for example.
> > But, if you need to do some forensics in your compromised server, this
> > file is the first place to know what the 'malicious dude' did to gain
> > root privileges, the server where he downloaded his craps, etc...
> > I started 'chown'ing the .bash_profile and .bashrc files to root, and
> > removed the 'wx' from group and others. The user has only read
> > permission.
> > But I can't prevent him from changing the HISTFILE variable. Like:
> > export HISTFILE=/dev/null
> > With this command, all my steps from now aren't recorded.
> >
> > Ideas?
> >
> > Regards,
> > Alejandro Flores

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